基于元胞自动机的行人视线受影响的疏散流仿真研究  

Simulation of pedestrian evacuation flow with affected visual field using cellular automata

作　　者：岳昊[1,2] 邵春福[1] 关宏志[2] 段龙梅 

机构地区：[1]北京交通大学城市交通复杂系统理论与技术教育部重点实验室,北京100044 [2]北京工业大学交通研究中心,北京100124 [3]吉林省公路勘测设计院,长春130021

出　　处：《物理学报》2010年第7期4499-4507,共9页Acta Physica Sinica

基　　金：国家重点基础研究发展计划(批准号:2006CB705500);国家科技支撑计划(批准号:2006BCG01A01);国家自然科学基金(批准号:50678004)资助的课题~~

摘　　要：基于元胞自动机对视线受影响的行人疏散流进行仿真研究.模型根据行人视野半径将疏散空间划分为可见安全出口区域、可见墙壁区域和盲目区域;利用两个动态参数描述行人在不同移动区域内的疏散特征,从而决定行人的行为选择,包括行人定向移动、沿墙移动和正常疏散移动等行为.仿真研究了行人在墙壁上存在疏散指示标志的疏散空间内,视线受影响时采用随机定向寻墙沿墙移动疏散策略的情况下,行人视野半径对行人疏散时间的影响.研究表明,行人疏散时间不仅受行人视野半径的影响,而且还与安全出口的宽度和安全出口利用率有关.Simulation of pedestrian evacuation flow with affected visual field is carried out on the basis of cellular automata.The room to be evacuated is divided into exit visible area,wall visible area and blind area by pedestrian sight radius,and two basic dynamic parameters in the dynamic parameters model are used to simulate the varied movement characteristics of pedestrian in different evacuation areas,including normal evacuation movement,movement along the wall and movement in fixed direction.The effect of pedestrian sight radius on evacuation time is studied with evacuation signs on the wall and pedestrian stochastically moving to find the wall in fixed directions and then moving along the wall.It is observed that the evacuation time depends not only on the pedestrian sight radius but also on the length and utilization rate of exit.

关 键 词：元胞自动机 行人疏散流 动态参数 视野半径 

分 类 号：N941.4[自然科学总论—系统科学]